Use Blender Cuda Build to use GPU in Simulations:
I think you've misunderstood the description for that build. It is merely stating what features were enabled at compile time. It's possible to build Blender without some things, such as the smoke simulator, or without CUDA. The description merely says that CUDA Cycles and the smoke simulator are both enabled, and that the build is speed optimized. It does not mean that the smoke simulator uses CUDA. Or anything else that doesn't normally support CUDA. 

Compiler settings cannot add GPU compute support to existing code. If someone says they "compiled with GPU support enabled" that means the code already supported it, they just compiled without disabling it.